| 摘要 |
A bus controller card capable of communicating high speed data between at least one host computer and at least one peripheral comprises a first bus segment connected between a first host connector, a first expander, a first card controller, a second expander, and a second host connector. A second bus segment extends from the first expander to a first backplane connector. A third bus segment extends from the second expander to a second backplane connector. At least one monitor bus segment is provided on the backplane to directly connect the first card controller to a second card controller on another bus controller card in the system. Each bus controller card is capable of determining whether cable connections to the bus interface card are properly mated; whether to enable an expander on the bus controller card; whether the bus controller card has primary or secondary status; and generating a signal to reset other components, including the other bus controller card, when one or more prespecified events are detected.
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